题目

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 Many diseases and medical conditions  (cause) by things out of our control. Yet experts say you can control and even prevent many of the risk factors that increase your chances of  (die) early. Experts note that an unhealthy lifestyle can put you  great risk of heart disease. Poor diet, having too much body fat and a lack of physical exercise all increase your risk of heart disease. But there is something else you can do. And it is free and easy. Smile! Anand is a heart disease specialist at University of Missouii Health Care in Columbia. He advises his patients  (smile). "When we smile, the brain wiring  (get) altered. The chemicals are released are more positive." He tells his patients to smile 20 times an hour. To some, that might seem a lot of smiling, some might even feel foolish.  a smile does not involve drugs. It is not invasive (侵害的) like a surgical operation. It is free and it has no bad side(effect). "Once people smile, they are relaxed. This relaxation  (direct) lowers blood pressure, and improves sugar levels in the blood. If we are smiling, we are breaking the link between stress and health." And it may provide a little extra  (protect) to everyone's heart health. 答案：【1】are caused【2】dying【3】at【4】to smile【5】gets/will get【6】which/that【7】But【8】effects【9】directly【10】protection

查看本题答案和解析